68239-53-2 Cuprate(4-), (29H,31H-phthalocyanine-2,9,16,24-tetrasulfonato(6-)-N29,N39,N31,N32)-, tetrasodium, (SP-4-2)- Cuprate(4-), (29H,31H-phthalocyanine-2,9,16,24-tetrasulfonato(6-)-kappaN29,kappaN30,kappaN31,kappaN32)-, tetrasodium, (SP-4-2)- EINECS 269-448-4 Tetrasodium (29H,31H-phthalocyanine-2,9,16,24-tetrasulphonato(6-)-N29,N30,N31,N32)cuprate(4-)